Free embeddable tool · no signup · no API key

Customer Retention Rate Calculator

Calculate simple customer retention from starting customers, ending customers and new customers.

Customers at period startCustomers at period endNew customers added

No account. No input is sent to Solarc Labs. Processing happens in this browser tab.

Opt-in only. The current converter or calculator inputs are stored in this browser until you clear them. Anyone using the same browser profile may be able to see them, so avoid sensitive values.

Result

Enter your values, then run the tool. Results stay on this device.

Method

Retention % = (ending customers − new customers) ÷ starting customers × 100.